401380172 has 6 divisors (see below), whose sum is σ = 702415308. Its totient is φ = 200690084.

The previous prime is 401380171. The next prime is 401380229. The reversal of 401380172 is 271083104.

It is a super-2 number, since 2×401380172² = 322212084949499168, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401380171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50172518 + ... + 50172525.

It is an arithmetic number, because the mean of its divisors is an integer number (117069218).

Almost surely, 2^401380172 is an apocalyptic number.

It is an amenable number.

401380172 is a deficient number, since it is larger than the sum of its proper divisors (301035136).

401380172 is a wasteful number, since it uses less digits than its factorization.

401380172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100345047 (or 100345045 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 401380172 is about 20034.4745875703. The cubic root of 401380172 is about 737.6527597765.

The spelling of 401380172 in words is "four hundred one million, three hundred eighty thousand, one hundred seventy-two".